If your furnace is getting older or you’ve been considering an upgrade, now is the time to act. Starting January 1, 2026, Colorado will enforce new regulations on gas-fired, fan-type central furnaces—and these changes are expected to dramatically impact both cost and availability.
Under Colorado House Bill 23-1161, newly installed residential gas furnaces must meet stricter nitrogen oxide (NOₓ) emissions standards. These efforts are aimed at improving air quality and public health—but for homeowners, the reality may include higher equipment prices, limited model availability, and fewer installation options.
What Are Colorado’s New Furnace Rules?
Beginning in 2026, any newly installed gas-powered, fan-type furnace must comply with updated environmental standards for NOₓ emissions—a major contributor to smog and poor indoor air quality.
This means:
- Only low-NOₓ compliant furnaces will be permitted after January 1, 2026
- Many traditional furnace models will no longer be available for installation
- Prices are expected to increase 2.5–3x due to supply limitations and stricter manufacturing requirements
These rules align with the state’s broader goal of reducing residential emissions—but they may leave homeowners with fewer options and much higher costs for HVAC replacement in the near future.
Why Act Now?
If your current furnace is:
- Over 15 years old
- Requiring frequent repairs
- Causing uneven heating or rising energy bills
- Struggling to meet comfort demands during colder months
…then now is the best window to schedule a furnace replacement—before new rules go into effect.
Pre-2026 models can still be installed up until the end of 2025. However, manufacturers and distributors are expected to phase out inventory well before then, driving up demand and limiting your choices.
What These Rules Mean for Homeowners
- Higher Costs Are Likely
- Fewer Furnace Options
- Faster Supply Shortages
- More Incentives (If You Act Soon)
New compliant models will be more expensive—not just due to updated technology, but also increased manufacturing and compliance costs.
Not every manufacturer has compliant models available yet. Expect a narrower selection, especially for budget-friendly systems.
As homeowners across Colorado rush to replace aging systems, installation slots, equipment, and technicians will book up fast—especially in late 2025.
Contractors like Roots Heating & Air are currently offering seasonal deals, low-interest financing, and rebates for energy-efficient installations—opportunities that may disappear as demand surges next year.
Don’t Wait—Prepare for Colorado’s Furnace Changes Today
At Roots Heating & Air, we’re committed to keeping your home safe, warm, and energy-efficient—all while helping you navigate upcoming HVAC regulations.
Whether you’re ready to replace your furnace now or simply want an expert opinion, we’re here to help you make a smart, informed decision. Call Roots Heating & Air today or schedule your free consultation online.
FAQs: Colorado Furnace Rule Changes & What to Do
Q1: Do I have to replace my current furnace before 2026?
No, existing furnaces can remain in use. However, if you need a new system after January 1, 2026, it must meet the new NOₓ emissions standards.
Q2.What is NOₓ and why is it being regulated?
NOₓ (nitrogen oxide) is a byproduct of combustion that contributes to smog and poor air quality. The state aims to reduce these emissions for environmental and health reasons.
Q3.Will there be furnace shortages before 2026?
Yes, many HVAC professionals anticipate supply shortages and installation delays as demand spikes toward the end of 2025.
Q4.Can I still install a non-compliant furnace before 2026?
Yes, but only while supplies last. These systems can be legally installed through December 31, 2025.
Q5.Are there any financial incentives for replacing now?
Absolutely. Many local utilities and contractors offer rebates, discounts, and financing options for high-efficiency systems installed before the rule takes effect.
Don’t Get Stuck in the 2026 Furnace Rush
Secure your system now with the trusted furnace installers in Colorado at Roots Heating & Air—and avoid higher prices, limited inventory, and installation delays.
Contact us today to request your free quote or second opinion. Your comfort is our priority.
